// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GL_GL_CONTEXT_OSMESA_H_
#define UI_GL_GL_CONTEXT_OSMESA_H_

#include "base/compiler_specific.h"
#include "base/macros.h"
#include "ui/gl/gl_context.h"

typedef struct osmesa_context* OSMesaContext;

namespace gfx {

class GLShareGroup;
class GLSurface;

// Encapsulates an OSMesa OpenGL context that uses software rendering.
class GLContextOSMesa : public GLContextReal {
public:
    explicit GLContextOSMesa(GLShareGroup* share_group);

    // Implement GLContext.
    bool Initialize(GLSurface* compatible_surface,
        GpuPreference gpu_preference) override;
    bool MakeCurrent(GLSurface* surface) override;
    void ReleaseCurrent(GLSurface* surface) override;
    bool IsCurrent(GLSurface* surface) override;
    void* GetHandle() override;
    void OnSetSwapInterval(int interval) override;

protected:
    ~GLContextOSMesa() override;

private:
    void Destroy();

    OSMesaContext context_;
    bool is_released_;

    DISALLOW_COPY_AND_ASSIGN(GLContextOSMesa);
};

} // namespace gfx

#endif // UI_GL_GL_CONTEXT_OSMESA_H_
